.gray-bg {
    background: #f4f4f4;
}

.bannerDiv {
    position: relative;
    display: block;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 400px;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    -moz-background-size: 100% 100%;
}

.bannerDiv .bannerImg {
    position: absolute;
    left: 0;
    top: 0px;
    z-index: -1;
}

.bannerTitle {
    position: absolute;
    left: 0;
    top: 0px;
    width: 100%;
    height: 100%;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.bannerTitle h2 {
    font-size: 38px;
    font-weight: 400;
    letter-spacing: 2px;
}

.bannerTitle p {
    margin-top: 20px;
    font-weight: 400;
    font-size: 16px;
    text-align: center;
    color: rgba(255, 255, 255, .95);
    -webkit-font-smoothing: antialiased;
}

@media (min-width: 980px) and (max-width: 1330px) {

    .bannerDiv {
        height: 350px;
    }

    .bannerTitle p {
        font-size: 15px;
    }
}

@media (min-width: 768px) and (max-width: 980px) {
    .bannerDiv {
        height: 350px;
    }
}

@media (min-width: 480px) and (max-width: 768px) {
    .bannerDiv {
        height: 280px;
    }
}

@media (max-width: 480px) {
    .property .container .row .col-lg-6 h1 {
        text-align: center;
        font-size: 28px;
    }

    /* banner图 */

    .bannerDiv {
        position: relative;
        display: block;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        height: 270px;
        background-repeat: no-repeat;
        background-position:right;
        background-size: auto 100%;
        -moz-background-size: 100% 100%;
    }

    .bannerTitle h2 {
        font-size: 22px;
        font-weight: 400;
        text-align: center;
        padding: 0 10px;
    }

    .bannerTitle p {
        margin-top: 10px;
        font-size: 13px;
        padding: 0 10px;
    }

}